EXP 8: A gorgeous photo of a sandbar shark, complete with Ampullae of Lorenzini, which are the sensory organs that look like freckles. A PVC tube attached to a water pump is placed in the shark's mouth to keep oxygenated seawater pumping over its gills during the quick workup. PC: Josh Liberman

EXP 8: A gorgeous photo of a sandbar shark, complete with Ampullae of Lorenzini, which are the sensory organs that look like freckles. A PVC tube attached to a water pump is placed in the shark’s mouth to keep oxygenated seawater pumping over its gills during the quick workup. PC: Josh Liberman